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Topic: Sensing colour at a distance (Read 1114 times)

I'm trying to build a bot that can detect walls at a distance and turn accordingly. The catch is that the walls are actually orange pylons and not a solid surface. I understand the logic on how to implement a system to detect how far an object is, however I'm not too sure how to start detecting the colour orange at a distance (a meter or two would be sufficient I think...).

Can anyone point me to some hints? I've read the guides on the site and they seem to only cover short distance colour detection.

The catch is that the walls are actually orange pylons and not a solid surface

if there are holes/discontinuities in the wall I would suggest using sonar rather than ir. Sharp ir's have a narrow beam of detection. As Admin says these sensors are susceptible to thin obstacles such as chair legs. I would also recommend using a camera for the color detection.